Prioritizing Use Of Engine Cold Start Aids To mitigate Effect Of Weakened Battery Bank
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
Jul 2, 2009
filing date -
Jul 3, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A motor vehicle has an electric power supply that includes a battery bank (122), a compression ignition engine (100), different types of cold start aids (118, 120) that draw electric current from the power supply for aiding engine starting in cold ambient temperature, and a control (124) for monitoring voltage of the power supply while the cold start aids are drawing current from the battery bank and for interrupting the current to a lower priority one of the cold start aids, but not a higher priority one of the cold start aids, when monitored voltage falls below a threshold voltage.
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